US4340328A - Rotary cutting tool and tool driver - Google Patents

Rotary cutting tool and tool driver Download PDF

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Publication number
US4340328A
US4340328A US06/175,290 US17529080A US4340328A US 4340328 A US4340328 A US 4340328A US 17529080 A US17529080 A US 17529080A US 4340328 A US4340328 A US 4340328A
Authority
US
United States
Prior art keywords
tool
driver
spline
cutting tool
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/175,290
Other languages
English (en)
Inventor
Sylvester E. Proulx
Stanley A. Beneteau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JP Tool Ltd
Original Assignee
JP Tool Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JP Tool Ltd filed Critical JP Tool Ltd
Application granted granted Critical
Publication of US4340328A publication Critical patent/US4340328A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/113—Retention by bayonet connection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17863—Shouldered-tang holding
    • Y10T279/17871—Cap
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/907—Tool or Tool with support including detailed shank
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/94—Tool-support
    • Y10T408/95—Tool-support with tool-retaining means
    • Y10T408/957—Tool adapter

Definitions

  • This invention relates to a rotary cutting tool driver and, more particularly, to a tool driver for straight fluted cutting tools such as reamers and drill bits, as well as to novel straight fluted cutting tools adapted for use with the driver.
  • a wide variety of rotary cutting tools are known such as twist drills, reamers, end mills, thread cutting taps, etc. having shanks of various configurations for mounting in the chuck of a drill press or milling machine.
  • the usual chuch has a threaded sleeve member moving over tapered surfaces which contract around the shank to hold it tightly in position. The torque load between the chuck and the shank of the cutting tool is then borne fully by the metal-to-metal pressure between the two faces.
  • Cutting tools of this type are widely used in metals manufacturing industries, particularly the automotive industry. In such service they are subjected to very intensive use and quickly become dull. Thus, they are changed frequently so that sharp cutting edges will always be in use.
  • the object of the present invention to provide a new design of driver for rotary cutting tools which is manually adjustable from unlocked to locked position for inserting and removing cutting tools.
  • One feature of this invention is a rotary tool driver comprising a shank member having a cylindrical portion projecting axially from one end thereof, this cylindrical portion having at least two spline members projecting longitudinally from the end thereof remote from the shank. These spline members have curvilinear outer faces forming extensions of the cylindrical portion, project inwardly to provide a central axial gap and radial gaps between the spline members.
  • a cylindrical sleeve member is rotatably mounted on the cylindrical portion and splines.
  • the sleeve member has at the outer end thereof radially inwardly projecting tab members adapted to engage notches formed in peripheral lands between the flutes of a fluted cutting tool when the tool is mounted in the driver and the flutes engage the splines.
  • the cylindrical sleeve is fixed against axial movement and the tabs serve to hold the cutting tool within the driver by engaging the notches formed in the peripheral lands between the flutes of the cutting tool.
  • the sleeve member includes a locking mechanism which retains the sleeve member in the locked (tool securing) position unless forcibly turned to the unlocked (tool releasing) position, preferably manually.
  • the cutting tool or bit itself and this is in the form of a straight fluted cutting tool having two or more flutes with notches projecting radially inwardly into the faces of the peripheral lands between the flutes adapted for engagement with the tabs of the driver.
  • the novel bits or cutters have cutting edges at both ends so that when one end becomes dulled, it is a simple matter of manually removing the cutter and reversing it to expose the sharp end. When both ends have become dulled, they can be sharpened for re-use.
  • the spline members have at the outer ends thereof longitudinal projections with curvilinear outer faces radially inwardly offset from the spline outer faces. These projections are radially aligned with the sleeve end tabs and the outer faces thereof preferably have a diameter which corresponds to the diameter of the bottoms of the notches in the peripheral lands of the cutting tool. In this manner, the bottoms of the notches in the peripheral lands and the outer faces of the projections form a complete circle. The inner edges of the tab members then travel along this circular path.
  • the inner end of the cutting tool abuts against the end of the cylindrical portion adjacent the start of the spline members. In this manner, the full axial load is carried by the cylindrical portion and none of the axial load need be carried by the tab members of the sleeve.
  • the torque load on the cutting tools is carried by face-to-face contact between the inwardly projecting faces of the spline members and the faces of the flutes of the cutting tool. It has been found particularly desirable to have the inner face of each spline shaped to locate and conformably engage the flutes of the cutting tool so that the cutting tool is snuggly held within the driver without any substantial lateral movement.
  • Another advantage of this arrangement is that cutting tools of differing cutting diameters can be inserted into a common driver without any need to adjust the driver itself.
  • the cutting tools can all be produced with a common central root or web dimension and a common dimension for the inner portions of the flutes. The only variable is then the actual radially outward projections of the peripheral lands between the flutes.
  • the outer faces of the lands do not actually engage the inner face of the cylindrical sleeve and the cutting tools are held by the contact between the central root portion and flute inner portions of the cutting tools with the inner faces of the splines.
  • the driver has unique features both as a driver and as a holder for the cutting tools.
  • the cylindrical portion of the driver can also be provided with an axially adjustable central abutment for engaging the ends of cutting tools of different lengths.
  • an axially adjustable central abutment for engaging the ends of cutting tools of different lengths.
  • the device of this invention can be used with any kind of cutting tool having two or more flutes and is typically used with cutting tools having from two to six flutes. Although it is particularly advantageous to utilize cutting tools with cutting faces on both ends, it will be appreciated that the invention is equally adapted to cutting tools having cutting faces at only one end.
  • FIG. 1 is an exploded view of a straight fluted reamer and driver
  • FIG. 2 is a partial sectional view of the driver shown in FIG. 1;
  • FIG. 3a is an end elevation of the driver shown in FIG. 2 in position to receive a cutting tool
  • FIG. 3b is the same view as FIG. 3a with a cutting tool inserted
  • FIG. 3c is the same view as FIG. 3b but with the cutting tool locked into operational position;
  • FIG. 4a is a side elevation of a straight fluted reamer
  • FIG. 4b is an end elevation of the reamer shown in FIG. 4a;
  • FIGS. 5a, 5b and 5c show a side elevation of a large reamer, an end elevation of the reamer inserted in a driver in unlocked position and the reamer inserted in a driver in the locked position respectively;
  • FIGS. 6a, 6b and 6c show a medium size reamer, an end elevation of the reamer in a holder in unlocked position and an end elevation of the reamer in a holder in locked position respectively;
  • FIGS. 7a, 7b and 7c show a side elevation of a small reamer, an end elevation of the reamer in a driver in unlocked position and the reamer in a driver in locked position respectively;
  • FIG. 8 is a perspective view of a straight fluted drill bit mounted in a driver according to the invention.
  • FIG. 9a is a side elevation of a two flute drill
  • FIG. 9b is an end elevation of the drill shown in FIG. 9a;
  • FIG. 10a is an end elevation of the holder shown in FIG. 8;
  • FIG. 10b is a side elevation showing details of the tool driver of FIG. 8;
  • FIG. 10c is an end elevation of the driver shown in FIGS. 10a and 10b with the drill bit inserted in unlocked position;
  • FIG. 10d is an end elevation of the arrangement in FIG. 10c but in locked position
  • FIGS. 11a and 11b are respectively an end elevation of a five-flute, straight fluted reamer mounted in a driver in unlocked and locked positions;
  • FIG. 12 is a sectional view of a tool driver according to FIG. 8 with an abutment adjustment.
  • FIG. 13 is a side elevation of a straight fluted tap.
  • 10 represents a typical shank member which may be straight, tapered, etc. as used in typical drill presses, milling machines, etc.
  • This shank 10 includes at one end thereof a cylindrical portion 11 with longitudinally projecting spline members 12. Projecting from the ends of these spline members are short end tips 13.
  • the splines 12 have curvilinear outer faces 21 preferably of the same curvature as cylindrical member 11.
  • the outer faces 23 of end tips 13 are also curvilinear in shape and are radially inwardly offset from the faces 21, with an end face portion 22 extending between outer face 21 and inner face 23.
  • the tips 13 terminate in end faces 24 and the splines 12 and tips 13 have a common inner face 25 which has radial side faces merging into a convex inner face as shown in FIG. 3.
  • a tubular member 14 fits snugly but rotatably over the cylindrical member 11 and splines 12.
  • the tubular member 14 has at the outer end thereof inwardly projecting tabs 15 which are adjacent the end tips 13, with the inner edges of tabs 15 moving in close proximity to the curved tip faces 23 as shown in FIG. 2.
  • the sleeve 14 has a slot 18 which corresponds longitudinally in position to a hole 17 extending through the cylindrical member 11.
  • a pin 16 extends into hole 17 whereby the amount of rotation of sleeve 15 is limited by the length of the slot 18.
  • a straight flute reamer 19 is shown fitting into the driver.
  • This cutting tool is of a generally cylindrical configuration and has three straight flutes 37 symmetrically disposed about and extending the entire length of the body, defining peripheral lands 20 therebetween.
  • the ends of the tool have camfers 28 and each land 20 has a central recess or notch 29.
  • the bottom faces 30 of these notches 29 are of the same diameter as the outer faces 23 of end tips 13 and are longitudinally aligned with these tips 13 so that the tabs 15 of sleeve 14 can turn into and out of engagement with the notches 29.
  • the inner end of the cutting tool abuts against the inner end face 26 of the holder. This end face then carries the full axial load of the cutting tool in operation and none of this load need be carried by the tabs 15.
  • the tabs 15, in the operating position merely serve to prevent the cutting tool 19 from being disengaged from the driver.
  • the slot 18 in sleeve 14 is so positioned and is of such length that when turned to one extremity, the tabs 15 are positioned between the notches 29 as shown in FIG. 3b, while at the other extremity, the tabs 15 are in engagement with the notches 29 as shown in FIG. 3c.
  • a spring loaded locking mechanism may be utilized to generally bias the sleeve 14 in the tool locked position of FIG. 3 such that the sleeve 14 can be removed from that position only by way of a brisk manual rotation thereof. This prevents the mechanism from accidentally unlocking.
  • FIGS. 5, 6 and 7 illustrate how the same tool driver as shown in FIGS. 1 and 2 can be utilized without any form of adjustment to retain cutting tools of different cutting diameters.
  • FIGS. 5a, 6a and 7a show a large reamer 31, a medium size reamer 32 and a small reamer 33, respectively, but the bottoms 30 of the notches or recesses 29 of each of these reamers is of identical diameter, that being that diameter of the outer faces 23 of end tips 13.
  • FIGS. 5b, 6b and 7b show the reamers in position in the driver in unlocked position and it will be seen from FIG. 5b that for the largest reamer the outer faces of the lands 20 just clear the inner face of sleeve 14, while in FIG.
  • FIG. 8 shows a driver having a sleeve member 40 with a pair of inwardly projecting end tabs 41.
  • This arrangement is designed to retain a two flute cutting tool, such as drill 42.
  • This drill has sharpened cutting ends 43 with each land 20 having a central notch or recess 44.
  • the bottoms 44a of these notches 44 are of the same or slightly smaller diameter than the inner edges of end tabs 41 so that the tabs 41 will mate within the notches 44 in the locked position.
  • the drill bit 42 has outer land faces 45 which fit within sleeve 40 and each drill has flutes 48 curved to mate with the curved inner faces 47 of splines 46.
  • the drill bit 42 fits snugly within the splines 46 for torque transfer and the drill bits are held in position by means of the end tabs 41 which mate with the notches 44.
  • the splines 46 were made without projecting end tips radially adjacent the tabs 41 and the splines terminated a short distance before the tabs 41 as shown in FIG. 10b. An easy locking and unlocking operation was still obtained.
  • FIGS. 10a and 10b illustrate the driver in the open position ready to receive a bit
  • FIG. 10c shows the end of the holder with the bit inserted prior to locking
  • FIG. 10d shows the bit in place with the tabs 41 in the locked position.
  • FIGS. 11a and 11b show a five-flute reamer 59 within a driver having a tubular sleeve 57 with end tabs 58.
  • FIG. 11a shows the reamer in place prior to locking and
  • FIG. 11b shows the bit in place with the tabs 58 in the locked position.
  • FIG. 13 is a side elevational view of a tap adapted for use in and made in accordance with the present invention.
  • the tap 60 has a plurality of flutes 61 extending the length of the tool body defining a plurality of lands 62 having formed thereon threads 63 for forming the threads in a machined hole.
  • the tap is similar in design to the reamer shown in FIG. 4a in that the tool is symetrical and indexable end for end in a tool driver of the type described herein.
  • notches 65 are formed in the lands at the mid-point of the tool for retaining engagement with tabs 15 as the driver or tool holder shown in FIG. 2.
  • the tap illustrated in FIG. 13 is of the type called a "plug tap” having cutting threads and a moderate chamfer or taper (64) at each of the ends thereof, other forms such as bottoming or taper taps can also be used.
  • the principal cutting of the threads is performed by the thread cutters at the end portion of the tap, the remaining threads acting as followers to clean the threaded hole.
  • the tool driver can be adapted to retain cutting tools of varying lengths by providing an adjustable abutment.
  • Mounted within the threaded bore 51 is a threaded member 54 having at one end a slot 55 to receive a screwdriver and a flat opposite end 56. This flat end 56 is the portion which engages the end of a cutter mounted within the splines 46 and is adjusted such that the full axial load on a cutter is always supported entirely by the abutment 56.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Drilling And Boring (AREA)
US06/175,290 1979-03-16 1980-08-04 Rotary cutting tool and tool driver Expired - Lifetime US4340328A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA323,670A CA1104847A (en) 1979-03-16 1979-03-16 Rotary cutting tool and tool driver
CA323670 1979-03-16

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US06028725 Continuation 1979-04-09

Publications (1)

Publication Number Publication Date
US4340328A true US4340328A (en) 1982-07-20

Family

ID=4113771

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/175,290 Expired - Lifetime US4340328A (en) 1979-03-16 1980-08-04 Rotary cutting tool and tool driver

Country Status (11)

Country Link
US (1) US4340328A (de)
EP (1) EP0016616A1 (de)
JP (1) JPS55125914A (de)
AR (1) AR220612A1 (de)
AU (1) AU5641080A (de)
BR (1) BR8001514A (de)
CA (1) CA1104847A (de)
DD (1) DD149621A5 (de)
ES (2) ES8104029A1 (de)
PL (1) PL130706B1 (de)
ZA (1) ZA801398B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535540A (en) * 1983-03-14 1985-08-20 Morgan Michael J "Hole-in-one" metal punch drive unit
US5704745A (en) * 1996-09-04 1998-01-06 Credo Tool Company Chuck sleeve insert for a drill
US5810102A (en) * 1996-08-23 1998-09-22 Stewart; Gary L. Reversible bit assembly
US5967713A (en) * 1997-09-25 1999-10-19 Emuge-Werk Richard Glimpel Fabrik Fuer Praezisionswerkzeuge Vormals Moschkau & Glimpel Quick-change insert
USD780548S1 (en) 2015-07-22 2017-03-07 Ac (Macao Commercial Offshore) Limited Power tool
USD806493S1 (en) 2015-07-22 2018-01-02 Tti (Macao Commercial Offshore) Limited Tool adapter
CN112620737A (zh) * 2020-12-09 2021-04-09 贵州黎阳国际制造有限公司 一种深孔加工装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29705575U1 (de) * 1997-03-27 1998-04-23 Pokolm, Franz-Josef, 33428 Harsewinkel Werkzeug zur zerspanenden Bearbeitung
CN114101796A (zh) * 2021-11-29 2022-03-01 成都朝合普尔航空科技有限公司 一种多精孔加工刀具的使用方法
CN115971517B (zh) * 2023-02-24 2023-06-06 麦格纳技术与模具系统（天津）有限公司 一种汽车金属板的车削加工装置

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US541130A (en) * 1895-06-18 Tool-handle
DE319308C (de) 1918-12-28 1920-03-04 Johann Runkel Bohrfutter zur Aufnahme von Bohrern von verschiedener Staerke
US1474404A (en) * 1921-12-13 1923-11-20 Universal Metal Products Compa Tool holder
US1522125A (en) * 1923-04-17 1925-01-06 Charles R Holmes Extension holder for bits
US1915669A (en) * 1932-10-10 1933-06-27 Whitman & Barnes Inc Tool
GB404735A (en) 1932-07-26 1934-01-25 Frederick Bates Means for retaining a drill or the like in a socket or chuck
US1964030A (en) * 1931-08-26 1934-06-26 Abbott P Brush Drill
US1965917A (en) * 1931-09-12 1934-07-10 Nels P Anderholm Combination tool
GB425706A (en) 1933-10-24 1935-03-20 Frederick Bates Means for retaining a drill or the like in a sleeve, socket or chuck
US2424113A (en) * 1946-08-30 1947-07-15 Plan O Mill Corp Tap and holder therefor
US2533179A (en) * 1949-05-03 1950-12-05 Thurston Mfg Company Tool and holder therefor
US2641478A (en) * 1947-10-18 1953-06-09 Joseph A Sigg Screw driver
DE879191C (de) 1944-12-09 1953-06-11 Peter Muckenhaupt Spannkopf fuer Spiralbohrer und der Spiralbohrer selbst
GB719625A (en) 1951-03-05 1954-12-08 Res Eng & Mfg Process of making screw driver bits
FR1200029A (fr) 1956-02-16 1959-12-17 Outils de coupe à profil constant sur toute leur longueur et procédé de fabrication
DE1904862U (de) 1963-10-11 1964-11-19 Georg Karl Behrendt Preisschild.
US3353437A (en) * 1964-10-14 1967-11-21 Fischer Artur Device for drilling holes in masonry walls and the like
US3531810A (en) * 1969-09-25 1970-10-06 Clarence J Fure Tapping tools
US4006996A (en) * 1975-12-01 1977-02-08 The Precise Corporation Positively driven tool holder for a high speed rotatable spindle
US4167363A (en) * 1977-06-03 1979-09-11 Whitesel Lowell E Counterbore cutting tool

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD45652A (de) *
US3604035A (en) * 1968-02-05 1971-09-14 Grover Edward Hendricks Floating tap and tap holder

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US541130A (en) * 1895-06-18 Tool-handle
DE319308C (de) 1918-12-28 1920-03-04 Johann Runkel Bohrfutter zur Aufnahme von Bohrern von verschiedener Staerke
US1474404A (en) * 1921-12-13 1923-11-20 Universal Metal Products Compa Tool holder
US1522125A (en) * 1923-04-17 1925-01-06 Charles R Holmes Extension holder for bits
US1964030A (en) * 1931-08-26 1934-06-26 Abbott P Brush Drill
US1965917A (en) * 1931-09-12 1934-07-10 Nels P Anderholm Combination tool
GB404735A (en) 1932-07-26 1934-01-25 Frederick Bates Means for retaining a drill or the like in a socket or chuck
US1915669A (en) * 1932-10-10 1933-06-27 Whitman & Barnes Inc Tool
GB425706A (en) 1933-10-24 1935-03-20 Frederick Bates Means for retaining a drill or the like in a sleeve, socket or chuck
DE879191C (de) 1944-12-09 1953-06-11 Peter Muckenhaupt Spannkopf fuer Spiralbohrer und der Spiralbohrer selbst
US2424113A (en) * 1946-08-30 1947-07-15 Plan O Mill Corp Tap and holder therefor
US2641478A (en) * 1947-10-18 1953-06-09 Joseph A Sigg Screw driver
US2533179A (en) * 1949-05-03 1950-12-05 Thurston Mfg Company Tool and holder therefor
GB719625A (en) 1951-03-05 1954-12-08 Res Eng & Mfg Process of making screw driver bits
FR1200029A (fr) 1956-02-16 1959-12-17 Outils de coupe à profil constant sur toute leur longueur et procédé de fabrication
DE1904862U (de) 1963-10-11 1964-11-19 Georg Karl Behrendt Preisschild.
US3353437A (en) * 1964-10-14 1967-11-21 Fischer Artur Device for drilling holes in masonry walls and the like
US3531810A (en) * 1969-09-25 1970-10-06 Clarence J Fure Tapping tools
US4006996A (en) * 1975-12-01 1977-02-08 The Precise Corporation Positively driven tool holder for a high speed rotatable spindle
US4167363A (en) * 1977-06-03 1979-09-11 Whitesel Lowell E Counterbore cutting tool

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535540A (en) * 1983-03-14 1985-08-20 Morgan Michael J "Hole-in-one" metal punch drive unit
US5810102A (en) * 1996-08-23 1998-09-22 Stewart; Gary L. Reversible bit assembly
US5704745A (en) * 1996-09-04 1998-01-06 Credo Tool Company Chuck sleeve insert for a drill
US5967713A (en) * 1997-09-25 1999-10-19 Emuge-Werk Richard Glimpel Fabrik Fuer Praezisionswerkzeuge Vormals Moschkau & Glimpel Quick-change insert
USD780548S1 (en) 2015-07-22 2017-03-07 Ac (Macao Commercial Offshore) Limited Power tool
USD806493S1 (en) 2015-07-22 2018-01-02 Tti (Macao Commercial Offshore) Limited Tool adapter
CN112620737A (zh) * 2020-12-09 2021-04-09 贵州黎阳国际制造有限公司 一种深孔加工装置

Also Published As

Publication number Publication date
ES489550A0 (es) 1981-04-16
AR220612A1 (es) 1980-11-14
ES8104029A1 (es) 1981-04-16
EP0016616A1 (de) 1980-10-01
DD149621A5 (de) 1981-07-22
CA1104847A (en) 1981-07-14
ES265036U (es) 1983-01-16
BR8001514A (pt) 1980-11-11
PL130706B1 (en) 1984-08-31
AU5641080A (en) 1980-09-18
PL222700A1 (de) 1980-12-01
JPS55125914A (en) 1980-09-29
ZA801398B (en) 1981-03-25
ES265036Y (es) 1983-07-01

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